Discarded cigarette butts as overlooked reservoirs and amplifiers of antibiotic resistance genes and pathogens in urban green spaces - Jia-Yang Xu; Yi-Tian Yu; Shuai Du; Luo-Qin Shen; Qi Zhang; Haifeng Qian; Tian-Gui Cai; Yi-Fei Wang; Jun Zhao; Hong-Zhe Li; Chengdong Zhang; Dong Zhu (Proceedings of the National Academy of Sciences, 2025)